EP 0430963 A4 19911121 - HYDROLYSIS RESISTANT VINYL LACTAM AMINO ACRYLAMIDE POLYMERS
Title (en)
HYDROLYSIS RESISTANT VINYL LACTAM AMINO ACRYLAMIDE POLYMERS
Publication
Application
Priority
US 23639588 A 19880825
Abstract (en)
[origin: WO9001920A1] The invention relates to a hydrolysis resistant, high molecular weight polymer represented by formula (I), wherein R is alkylene having from 3 to 8 carbon atoms which is optionally substituted with lower alkyl; R1? and R2? are each hydrogen or methyl; wherein R7? and R8? are each alkylene having from 1 to 18 carbon atoms and are optionally substituted with alkyl; the sum of r and t is one or two; R4? and R5? are each independently lower alkyl; R6? is alkyl, aralkyl or alkaryl having from 1 to 8 carbon atoms or N-alkylene lactam having from 3 to 8 carbon atoms; X?- is an anion derived from the group of halogen, SO3?, SO4?, HSO4? and R6?SO4?; M is a copolymerizable vinyl monomer; n has a value of from 10 to 99 mole %; m has a value of from 1 to 90 mole %, p has a value of from 0 to 20 mole % and the sum of m + n + p is 100; q and q' have the same value which is 0 or 1; s is the reciprocal of the number of negative charges in X; and the total amount of monomer represented by subscript m can be from 1 % to 100 % quaternized. The invention also relates to a process for the preparation of the polymer containing low residual monomer and to uses of the polymer.
IPC 1-7
IPC 8 full level
A61K 8/72 (2006.01); A61K 8/00 (2006.01); A61K 8/81 (2006.01); A61Q 5/00 (2006.01); A61Q 5/02 (2006.01); A61Q 5/06 (2006.01); A61Q 5/12 (2006.01); C08F 20/52 (2006.01); C08F 26/10 (2006.01); C08F 220/60 (2006.01); C08F 226/06 (2006.01); C08F 226/10 (2006.01)
CPC (source: EP US)
A61K 8/8182 (2013.01 - EP US); A61Q 5/02 (2013.01 - EP US); A61Q 5/12 (2013.01 - EP US); C08F 220/60 (2013.01 - EP US); C08F 226/06 (2013.01 - EP US); Y10S 424/02 (2013.01 - EP US)
Citation (search report)
See references of WO 9001920A1
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9001920 A1 19900308; AU 3961789 A 19900323; AU 635712 B2 19930401; BR 8907617 A 19910702; CA 1339238 C 19970805; DE 68912335 D1 19940224; DE 68912335 T2 19940601; EP 0430963 A1 19910612; EP 0430963 A4 19911121; EP 0430963 B1 19940112; JP H04500224 A 19920116; US 4923694 A 19900508
DOCDB simple family (application)
US 8902878 W 19890703; AU 3961789 A 19890703; BR 8907617 A 19890703; CA 605344 A 19890711; DE 68912335 T 19890703; EP 89908113 A 19890703; JP 50765789 A 19890703; US 23639588 A 19880825